Novel weeding preparation and preparation method thereof

Abstract

The invention relates to the technical field of herbicides, in particular to a novel weeding preparation and a preparation method thereof. The novel weeding preparation includes at least one compound of formula (1) or formula (2). The novel weeding preparation is prepared by combining two compounds with novel structures, and parasitic weeds can be prevented and removed by adopting a 'suicide' germination strategy by utilizing the characteristic that parasitic weed seeds can germinate only by being stimulated and induced by allelochemicals, that is, before crops are planted, proper allelochemicals are sprayed on the land to induce the weed seeds to germinate, then the weeds finally die due to the fact that no corresponding hosts provide water and nutrition, and the purpose of effectively killing parasitic weed seed banks can be achieved. By using the weeding preparation provided by the invention, the soil inventory of weed seeds can be reduced, prevention and removal can be carried out before seedling emergence, the problems of crop quality reduction, pesticide residues, environmental pollution and the like are avoided, and the weeding preparation is a sustainable ecological parasitic weed comprehensive prevention and control strategy.

Description

technical field [0001] The invention relates to the technical field of herbicides, in particular to a novel herbicide preparation and a preparation method thereof. Background technique [0002] As one of the three major types of pesticides, herbicides play an irreplaceable role in ensuring stable agricultural production and income and national food security. Most of the more than 50,000 weeds in the world can be controlled by using high-efficiency chemical herbicides. However, there is no very effective chemical control method for parasitic weeds. A worldwide problem in weed control. Although a small number of chemical herbicides can temporarily alleviate the large-scale occurrence of parasitic weeds in that year, they have varying degrees of impact on crops and the environment, and can also cause severe resistance to weeds. Therefore, the discovery of green herbicides based on new modes of action and natural active structures, especially biogenic herbicides, is an importa...

AI Technical Summary

Problems solved by technology

[0004] However, traditional insecticides mostly destroy the growth of parasitic weeds. When the weed seeds in the soil germinate, the parasitic weeds will still grow in large areas

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